private static String matchAttributeTypeNumericOid()

in ldap/model/src/main/java/org/apache/directory/api/ldap/model/name/FastDnParser.java [461:560]
83 lines of code
32 McCabe index (conditional complexity)

    private static String matchAttributeTypeNumericOid( char[] name, Position pos ) throws LdapInvalidDnException
    {
        int dotCount = 0;
        int start = pos.start;

        while ( true )
        {
            char c = nextChar( name, pos, true );

            switch ( c )
            {
                case '0':
                    // leading '0', no other digit may follow!
                    c = nextChar( name, pos, true );

                    switch ( c )
                    {
                        case '.':
                            dotCount++;
                            break;

                        case ' ':
                        case '=':
                            pos.start--;
                            break;

                        default:
                            throw new LdapInvalidDnException( ResultCodeEnum.INVALID_DN_SYNTAX, I18n.err(
                                I18n.ERR_13606_EXPECTED_NUMERICOID, c, pos.start ) );
                    }

                    break;

                case '1':
                case '2':
                case '3':
                case '4':
                case '5':
                case '6':
                case '7':
                case '8':
                case '9':
                    boolean inInnerLoop = true;

                    while ( inInnerLoop )
                    {
                        c = nextChar( name, pos, true );

                        switch ( c )
                        {
                            case ' ':
                            case '=':
                                inInnerLoop = false;
                                pos.start--;
                                break;

                            case '.':
                                inInnerLoop = false;
                                dotCount++;
                                break;
                                
                            case '0':
                            case '1':
                            case '2':
                            case '3':
                            case '4':
                            case '5':
                            case '6':
                            case '7':
                            case '8':
                            case '9':
                                break;

                            default:
                                throw new LdapInvalidDnException( ResultCodeEnum.INVALID_DN_SYNTAX, I18n.err(
                                    I18n.ERR_13606_EXPECTED_NUMERICOID, c, pos.start ) );
                        }
                    }

                    break;

                case ' ':
                case '=':
                    pos.start--;

                    if ( dotCount > 0 )
                    {
                        return new String( name, start, pos.start - start );
                    }
                    else
                    {
                        throw new LdapInvalidDnException( ResultCodeEnum.INVALID_DN_SYNTAX, I18n.err( I18n.ERR_13607_DOT_MISSING_IN_OID ) );
                    }

                default:
                    throw new LdapInvalidDnException( ResultCodeEnum.INVALID_DN_SYNTAX, I18n.err( I18n.ERR_13608_START_AT_NUMERICOID_EXPECTED, c,
                        pos.start ) );
            }
        }
    }